public void BookIssueToStudent(int studentId, string BookBarcode)
{
var book = _unitOfWorkLibraryService.BookRepository.GetBookByBarCode(BookBarcode);
var student = _unitOfWorkLibraryService.StudentRepository.GetStudentById(studentId);
if (student != null)
{
if (book != null)
{
var issuedBook = new IssueBook
{
StudentId = studentId,
BookId = book.BookId,
BookBarCode = BookBarcode,
IssueDate = DateTime.UtcNow
};
_unitOfWorkLibraryService.BookIssueRepositor.IssueBook(issuedBook);
var bookCount = book.CopyCount;
bookCount -= 1;
book.CopyCount = bookCount;
_unitOfWorkLibraryService.BookIssueRepositor.DecreamentBookCountAfterIssue(book);
_unitOfWorkLibraryService.save();
}
else
{
throw new InvalidOperationException("This book Is not available");
}
}
else
{
throw new InvalidOperationException($"Student Id {studentId} Not a valid Student");
}
}
public void BookReturn(int studentId, string bookBarcode)
{
var book = _unitOfWorkLibraryService.BookRepository.GetBookByBarCode(bookBarcode);
var student = _unitOfWorkLibraryService.StudentRepository.GetStudentById(studentId);
if (student != null && book != null)
{
var returnBook = new ReturnBook
{
StudentId = studentId,
BookId = book.BookId,
BookBarCode = bookBarcode,
ReturnDate = DateTime.Now
};
_unitOfWorkLibraryService.ReturnBookRepository.ReturndBook(returnBook);
var bookCount = book.CopyCount;
bookCount += 1;
book.CopyCount = bookCount;
_unitOfWorkLibraryService.ReturnBookRepository.IncreamentBookCountAfterReturn(book);
_unitOfWorkLibraryService.save();
}
else
{
throw new InvalidOperationException(" Invalid Operation ");
}
}
public double CalculateFine(int studentId)
{
var bookIssuedate = _unitOfWorkLibraryService.BookIssueRepositor.GetBookIssueDate(studentId);
var bokReturnDate = _unitOfWorkLibraryService.ReturnBookRepository.GetBookReturnDate(studentId);
var dayCount = (bokReturnDate - bookIssuedate).Days - 1;
if (dayCount > 7)
{
var delayDays = dayCount - 7;
double fine = delayDays * 10;
_unitOfWorkLibraryService.StudentRepository.SetStudentFine(studentId, fine);
_unitOfWorkLibraryService.save();
return(fine);
}
else
{
return(0);
}
}
public void InsertBook(Book book)
{
_unitOfWorkLibraryService.BookRepository.EntryBook(book);
_unitOfWorkLibraryService.save();
}
